| December 1992 |
ISO 9002 JQA, BSI certification (Numazu and Fukui plants)
-Chemical Products Business Group |
| November 1993 |
ISO 9001 JQA, BSI certification (Numazu plant)
-Chemical Products Business Group |
| January 2001 |
Independent ISO 9001 certification of the Thermal Media Company |
| December 2001 |
ISO 9001 Certification (2000 Version) |